WO1997026423A1 - Element de paroi - Google Patents

Element de paroi Download PDF

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Publication number
WO1997026423A1
WO1997026423A1 PCT/AT1997/000005 AT9700005W WO9726423A1 WO 1997026423 A1 WO1997026423 A1 WO 1997026423A1 AT 9700005 W AT9700005 W AT 9700005W WO 9726423 A1 WO9726423 A1 WO 9726423A1
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WO
WIPO (PCT)
Prior art keywords
concrete
layer
heavy
concrete layer
eps
Prior art date
Application number
PCT/AT1997/000005
Other languages
German (de)
English (en)
Inventor
Regina Wetter
Original Assignee
Alpha Brevet S.A.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Alpha Brevet S.A. filed Critical Alpha Brevet S.A.
Priority to AU13595/97A priority Critical patent/AU1359597A/en
Publication of WO1997026423A1 publication Critical patent/WO1997026423A1/fr

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C2/00—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels
    • E04C2/02—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials
    • E04C2/04—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of concrete or other stone-like material; of asbestos cement; of cement and other mineral fibres
    • E04C2/049—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of concrete or other stone-like material; of asbestos cement; of cement and other mineral fibres completely or partially of insulating material, e.g. cellular concrete or foamed plaster

Definitions

  • the invention relates to a wall component for external or ceiling walls made of heavy concrete, optionally with additives made of pumice, expanded clay or the like, and lightweight concrete.
  • Molds such as battery formwork and vibratory tilting tables are used for the production of such components, with the aid of which it is possible to manufacture in relatively large numbers.
  • the walls made of the aforementioned lighter concretes are already better, which no longer show the unfavorable heavy concrete diffusion properties, but with which the strength properties of the original precast concrete parts could not be achieved.
  • the main advantage of the lightweight concrete components is the much better thermal insulation compared to the heavy concrete parts.
  • the wall thicknesses of wall components for example made of expanded concrete, pumice concrete and the like, would have to be increased to 60 to 80 cm in order to ensure sufficient strength.
  • Such wall thicknesses are, however, completely unusual in modern construction and would result in a far-reaching change in all other dimensions, means of transport and building materials that would not be economically justifiable.
  • the object of the invention is therefore to provide a wall component of the type mentioned at the beginning, with which high thermal insulation and high stability of the wall can be achieved.
  • Another object of the invention is to provide a wall component which is characterized by easy workability and coatability as well as a high weather resistance.
  • the wall component is formed from at least two layers, the inner layer being made from heavy concrete, optionally with aggregates made of pumice, expanded clay, EPS or the like, or expanded concrete, optionally with aggregates made of EPS or the like, and the outer layer is made of lightweight concrete.
  • the thickness of the heavy concrete layer is approximately 20 cm and the thickness of the light concrete layer is approximately 10 cm.
  • a further light concrete layer can be applied on the inside of the inner layer of the wall component.
  • this further inner light concrete layer on the inside of the wall has a more pleasant behavior for the user than an inner heavy concrete layer surface.
  • the inner and / or the outer lightweight concrete layer is made of lightweight EPS concrete with additives made of, preferably surface-sintered, polystyrene foam particles, which preferably have a bulk density of 0.15 kg / liter and 0.55 kg / liter having.
  • EPS lightweight concrete In addition to a high thermal insulation capacity, EPS lightweight concrete also has a very high fire resistance, so that it also fulfills the fire protection requirements in addition to the thermal insulation values to be observed. In the case of surface-hardened additives, the properties improve in terms of frost resistance and moisture absorption. In addition, EPS lightweight concrete is also very easy to work with and can be coated in a simple manner, for example by painting.
  • the inner and / or the outer lightweight concrete layer by additives such as expanded clay, pumice, metallurgical pumice, slag, pearlite, gas concrete, brick chippings, fibers or the like. is reinforced.
  • the strength of the lightweight concrete layer (s) can be increased, with the reinforcing additives particularly preferably accounting for up to 60% of the lightweight concrete.
  • the outer lightweight concrete layer can, according to another embodiment, be formed by a plate, preferably with an arrangement of, especially dovetail-shaped grooves facing the heavy concrete layer, onto which a heavy concrete layer is poured and positively connected to it.
  • the inner lightweight concrete layer can also be formed by a plate, preferably with an arrangement of, in particular, dovetail-shaped grooves facing the heavy concrete layer, onto which a heavy concrete layer is poured and positively connected to it.
  • Another object of the invention is to provide a method for producing a wall component according to the invention, with which the at least two layers can be connected as simply and securely as possible.
  • this is achieved in that heavy concrete is poured into a mold and shaken, and that the outer light concrete layer is poured and shaken onto this uncured inner heavy concrete layer and then the layer system is allowed to harden.
  • the production can thus be carried out without intermediate waiting times, so that there is a relatively short working time for this.
  • the layer system can be cured in a storage room separate from the production room.
  • the inner lightweight concrete layer is poured into the mold and shaken before the heavy concrete layer.
  • the outer, and if appropriate the inner, light concrete layer is pressed into the still plastic heavy concrete layer as a, preferably provided with grooves, whereby the heavy concrete can penetrate into these grooves, so that the layers adhere to one another is increased.
  • a lightweight concrete layer poured into a mold is allowed to harden until the remaining shrinkage per unit length corresponds to the total shrinkage of a hardening, approximately congruent heavy concrete slab and the partially hardened lightweight concrete layer to a fresh in another form of cast heavy concrete layer is pressed, and then the two bonded layers are allowed to harden.
  • Another object of the invention is to provide a method for producing a wall from heavy concrete, optionally with additives from pumice, expanded clay or the like.
  • a multi-layer wall is built up by assembling lightweight concrete wall components, optionally after passing through a pre-shrinkage time, preferably separated by spacing stirrups, to form two parallel wall regions at a distance from the core thickness of the heavy concrete layer be, and that in the space formed between the lightweight concrete walls heavy concrete, possibly with additives from pumice, expanded clay or the like, is filled and allowed to harden.
  • the lightweight concrete layers that later form the outer and inner layers can be used as formwork for the heavy concrete layer, which considerably simplifies the production of a component according to the invention from several layers or the transport of the heavy concrete layer to the construction site is not necessary since these are cast on site can.
  • groove-like grooves are incorporated into the lightweight concrete wall parts before assembly on their sides facing the heavy concrete layer.
  • Another object of the invention is to provide a spacer element for use in one of the aforementioned methods, with which an effective spacing of the lightweight concrete layers can be carried out and which can absorb the pressure acting on the lateral lightweight concrete walls due to the heavy concrete filling.
  • this is achieved in that two impact surfaces are connected to one another via a bracket, and in that two spacing stops are provided on the bracket at a distance from the core thickness of the heavy concrete, the distance of the spacing stops from the impact surfaces corresponding to approximately half the thickness of the lightweight concrete walls.
  • the spacer elements according to the invention are characterized by the simplicity of their operation and by a secure hold in the lightweight concrete walls.
  • Fig.l a wall component according to the invention
  • FIG. 3 shows a further embodiment of a wall component according to the invention.
  • 5A, 5B, 5C and 5D show an oblique view of exemplary embodiments for wall components and profile rails
  • FIG. 6 shows an oblique view of a wall composed of wall components
  • FIG. 7 shows an embodiment of a wall component
  • FIG. 8 shows a further embodiment of a wall component
  • Fig.l 1 a section through sound-absorbing EPS material.
  • the wall component is formed from at least two layers, the inner layer being made from heavy concrete, optionally with aggregates made from pumice, expanded clay, EPS (expanded polystyrene foam) or the like, or reinforced concrete, optionally with additives from EPS or the like, and the like outer layer is made of lightweight concrete.
  • the inner layer is the layer facing the interior of the building, while the outer layer means the layer facing this outside of the building.
  • the procedure is such that the core of the wall components according to the invention is formed from a heavy concrete core layer, which can preferably be up to 20 cm, which may also consist of expanded concrete or similar material as well as a mixture of heavy concrete with expanded concrete or with EPS Concrete, or a mixture of expanded concrete with EPS concrete.
  • the core layer takes on the supporting function, the heat storage function and airborne sound insulation function of the component according to the invention.
  • This core layer is now preferably provided in the precast plant on the future outside of the wall with a preferably 10 cm thick, wet installed EPS lightweight concrete layer, preferably freshly mixed EPS lightweight concrete, e.g. Bulk density: 0.15 to 0.55 kg / liter is used.
  • the total wall thickness can be kept significantly lower compared to a wall component made only from heavy concrete.
  • EPS lightweight concrete mixed with expanded clay particles or similar substances can also be used.
  • the production according to the invention takes place by pouring and shaking heavy concrete into a mold, and pouring and shaking the outer lightweight concrete layer onto this uncured inner heavy concrete layer and then allowing the layer system to harden.
  • the future inside walls of the prefabricated wall components can also be formed with an approximately 5 cm thin layer of lightweight concrete. This means that the installations can only be inserted into this easy-to-work layer after the walls have been installed. This means that there is no need to open the heavy concrete layer afterwards.
  • EPS lightweight concrete can be milled extremely easily, so that the expensive planning and positioning of the electrical or water installations in the prefabricated wall construction according to the invention can be dispensed with.
  • prefabricated EPS lightweight concrete panels can also be combined with a freshly mixed concrete core mass made of heavy concrete or lighter heavy concrete become. This applies to both the thin inner layer made of EPS lightweight concrete and the outer layer of EPS lightweight concrete.
  • the outer and the inner EPS lightweight concrete layer which is pressed in plate form into the still plastic concrete material of the core layer, can have an arrangement of preferably dovetail-shaped grooves on the inside - i.e. the side facing the concrete kera - in which the Core concrete penetrates especially when vibrated. This creates a positive connection between the outer insulation layer and the concrete core.
  • the thin-walled EPS lightweight concrete layer arranged to accommodate the installations on the inside can also consist of prefabricated slabs, which also have groove-like, preferably dovetail-shaped grooves, into which the concrete core concrete penetrates in such a way that a positive permanent connection between the slab and the concrete core is created.
  • the EPS lightweight concrete layer on the outside of the building can also be installed wet on wet with the load-bearing concrete or lighter concrete layer on the vibrating table / tilting table / formwork table.
  • the procedure according to the invention can be such that when EPS lightweight concrete slabs are to be placed on a fresh, possibly still plastic heavy concrete core by gluing or positive locking, these EPS -Lightweight concrete slabs are only connected to the heavy concrete core at a certain time after production.
  • the production of very large wall components can also be carried out by allowing a lightweight concrete layer cast into a mold to harden until the remaining shrinkage per unit length corresponds to the total shrinkage of a hardening, approximately congruent heavy concrete slab and the partially hardened lightweight concrete layer removed from the mold and pressed onto a layer of heavy concrete freshly poured into another mold, and then the two interconnected layers are allowed to harden.
  • the shrinkage is 0.1357 mm per day for pre-shrinkage, which results in a pre-shrinkage time of 9.5 days for the lightweight concrete slab.
  • This method means that, in particular in the case of thin-walled sandwich sandwich designs, no warping of plates can occur because the shrinkage of the materials, which are different per se, can thus be brought to the same final formats.
  • Such a pre-shrinkage time of the outer and inner formwork elements which according to the invention preferably consists of lightweight EPS or expanded clay / EPS lightweight concrete mixes, is also favorable in the case of jacket concrete constructions.
  • Such a multi-layer cladding wall is constructed in accordance with FIG. 2 by assembling lightweight concrete wall components d, optionally after passing through a pre-shrinkage time, preferably separated by spacing brackets a, to form two parallel wall regions at a distance from the core thickness of the heavy concrete layer, with the space formed between the lightweight concrete walls e heavy concrete is filled.
  • a slightly reinforced EPS lightweight concrete can also serve as the sheath concrete layer d.
  • the reinforcement of this mass can also be expanded clay, pumice, cottage pumice, slag, Perlite brick chippings, etc. However, you will rarely mix more than 60 percent by volume of such heavy, but firmer masses into EPS lightweight concrete.
  • the thinner EPS lightweight concrete slab or expanded clay EPS lightweight concrete is also placed on the living room side, i.e. the inside of the cladding concrete construction, and the significantly thicker EPS lightweight concrete slab is placed on the outside of the wall (e.g. preferably in thicknesses of 8-25 cm or more) .
  • the inside of the cladding formwork panel on the inside for a multilayer wall system according to the invention can be shaped in thicknesses of preferably 2.3 to 10 cm.
  • These cladding concrete slabs can also be set horizontally offset in rows, but the slab dimensions can be I m x 0.5 m or 62.5 x 125 cm or 35 x 75 cm.
  • the EPS lightweight concrete cladding concrete slabs can have tongue and groove or rebate formations on their abutting edge.
  • the EPS lightweight concrete jacket concrete slabs can also be installed standing, not just lying down, hand to hand.
  • brackets a which are designed in such a way that two impact surfaces c are connected to each other via the bracket a, with two additional spacing stops b arranged on the bracket a at a distance from the core thickness of the heavy concrete are provided, the distance from the impact surfaces corresponds approximately to half the thickness of the lightweight concrete jacket walls d.
  • the impact surfaces c are made of sheet metal and are hammered into the plates on the end face d by means of a hammer, so that they are then sunk in the EPS lightweight concrete material.
  • EPS lightweight concrete is not brittle and is absolutely splitting tensile.
  • Prottelith A special type of lightweight EPS concrete is sold under the trade name Prottelith.
  • EPS lightweight concrete blocks or blocks made of expanded clay-EPS mixtures can be cut into thin slabs or blocks by sawing, e.g. also plates with a thickness of only about 1 cm.
  • the EPS lightweight concrete described above can also be mixed with substances such as expanded clay, etc. in order to achieve higher block strengths.
  • EPS lightweight concrete panels with gas concrete particles e.g. Scrap of Ytong components with a diameter of up to 12 mm grain size, etc. getting produced.
  • EPS Prottelith panels 1, 2 which have the appropriate pre-shrinkage time and are preferably designed on the concrete core side with vertical grooves 4 equally spaced from one another, are used as a type of battery formwork, with the core concrete in the spaces 3 is filled according to the arrows.
  • the core concrete can consist of pure heavy concrete or of lighter heavy concrete, for example light concrete containing expanded clay aggregates, also called Leca-Prottelith. If solid wall blocks are produced, these blocks should also contain depressions designed as handles on the side flanks during the course of the production. Such handle pockets can be easiest hollowed out later using a milling tool.
  • Such EPS lightweight concretes can also be used to produce any shape - non-load-bearing, heat-insulating ceiling filler as well as ceiling stone displacement bodies, which will have a safe place in the building material range due to their low weight and very good workability and fire safety.
  • ceiling hanging stones 5 produced according to the invention - as shown in FIG. 4 - can be produced, which can be cut or cut to length on site and then hung in ceiling beams 6.
  • the simplest hand tools, such as saws, are sufficient to cut them to the required size.
  • Composite elements such as sandwich panels, consisting of EPS lightweight concrete with a central expanded clay lightweight concrete core, or instead only EPS lightweight concrete panels, which also contain harder additives, e.g. Expanded clay can be used, in thicknesses of preferably 4, 6, 8, 10, 12, 14, 16 cm or more, for the formation of stud walls.
  • the aforementioned composite panels or EPS lightweight concrete panels which can also contain expanded clay, with dimensions of, for example, 2.5 mx 0.5 m or 3 mx 1 m or 1 mx 0.5 m or similar - can be used in sheet metal U-profiles 10, 11 or 12 according to Fig.5c or the like.
  • This results in lightweight concrete stud walls which, instead of the hollow space otherwise filled with mineral wool, no longer have any hollow spaces.
  • the cavities now filled with lightweight concrete building boards are suitable for holding dowels and / or various fastening elements.
  • FIG. 5a and 5b show the production of upright walls with the aid of U-shaped metal rails 12 which, according to FIG. 5D, have receiving slots 15 on the end face into which rails 12 running normally can be inserted.
  • the rails 12 are assembled. This happens about the same as it is common with ordinary plasterboard stud walls.
  • the EPS lightweight concrete slab core 13 is inserted into these U-profiles 12, wherein a fixation of the slabs 13 by means of foaming with PU foam is particularly suitable. Butt joints of the EPS panels can also be glued very well using PU foam.
  • gypsum plasterboard, gypsum fibreboard or chipboard 17 are mounted on a wall side by screwing them onto the U-profiles 12 and also gluing them with the EPS lightweight concrete panels 13 or at strip intervals of about 30 to 70 cm from one another be screwed.
  • EPS lightweight concrete panels 13 or at strip intervals of about 30 to 70 cm from one another be screwed.
  • metal profiles 12 or the like can be saved because the wall through the gypsum boards 17 becomes extremely stable even with overall thicknesses of only 6 to 8 cm.
  • wooden stacks can also be used.
  • the lines 19 only need to be pressed into the milled slots 21 and in the meantime also hold without plastering if the end mill is designed in this way, e.g. pear-shaped, that the milling slot on the plate top 13 is narrower than on its lower area.
  • the lines 19 are pressed into the slots 21 and hold by themselves.
  • the EPS particles are exposed to surface sintering by heat treatment with alternating exposure to cold or water vapor in the production of lightweight EPS for the purposes of the invention.
  • the EPS particles which can often be up to 15 or 20 mm in size, are sintered in such a way that absolutely no water can penetrate into these particles.
  • EPS lightweight concrete panels for partitions / partitions can also be done in such a way that these EPS lightweight concrete panels are not glued at all, but are only screwed to the stud wall profiles. This has the advantage that the lightweight concrete panels are fully recyclable when the walls are dismantled.
  • EPS lightweight concrete cement-bonded particles
  • adhesion promoters for example wise in the bulk density range from 0.15 kg / liter up to 500 kg / liter and even more, whereby often also sintered EPS particles can preferably be used.
  • EPS lightweight concrete cement-bonded particles
  • Such lightweight concretes are also particularly suitable for the manufacture of soundproof walls outdoors, since they are coarse-pored, sound-absorbing and not sound-reflecting.
  • the protective effect in the event of a collision with vehicles due to the resilient, energy-absorbing but non-resilient properties of such lightweight concrete also counts as an important advantage.
  • EPS concretes which, if appropriate - as mentioned above - with expanded clay particles or the like. are reinforced as embankment blocks, which are also very suitable for plant growth, since the compatibility with soil, humus, acids and the like is favorable.
  • embankment blocks which are also very suitable for plant growth, since the compatibility with soil, humus, acids and the like is favorable.
  • the water balance of this material when planting is also excellent, since moisture is stored in the material on the one hand, but there is no swamp climate because excess water can drain off. The material is not destroyed in spite of moisture in frost.
  • Additives to lightweight EPS concrete can therefore be:
  • Another application of the aforementioned EPS lightweight concrete mixes with expanded clay or the like. arises for the substructures under paving or stone slabs made of natural or artificial stone, because the absolute frost resistance of these materials, in particular the bulk density range is up to about 1000 kg / nr, especially if the EPS particles were sintered beforehand so that their surface was glazed - the EPS bulk volume fraction can preferably be between 40 and 100 percent.
  • EPS concrete in particular sintered EPS lightweight concrete, possibly with hard materials such as expanded clay or the like, is also used for the erection of railway embankments or as a sleeper beam. Particularly suitable because it is frost-proof, elastic-stable, water-insensitive, rot-proof and heat-insulating.
  • the invention further relates to a method and devices for sound absorption and airborne sound insulation.
  • an EPS expanded polystyrene foam
  • This is a mixture of expanded foam particles that are bonded with cement paste. Additives such as fine sand, grit, gravel, expanded clay, pumice, pearlite grains or the like can often be used.
  • EPS packaging materials which are crushed in grain sizes up to 12 mm and above, sometimes up to 30 mm and larger, are used as the main aggregate. It is also proposed according to the invention that the EPS particles are subjected to a heat treatment on the surface before they are used for mixing with cement paste, so that the particle surfaces glaze over and thus form a kind of egg shell on the EPS particle which is watertight. These EPS aggregate particles treated in this way proved to be particularly good for outdoor use because their moisture resistance has increased as a result.
  • these lightweight concretes have a relatively low mass. Because if noise protection walls e.g. are erected on road edges, they serve not only as such, but also as impact protection for vehicles, because the light material, weighing about 1/8 to 1/10 of heavy concrete, has less inertia than heavy concrete.
  • the invention it is possible to proceed in such a way that only panels made of EPS lightweight concrete are formed as sound absorption panels, panel thicknesses preferably being arranged alternately with panels of twice the thickness approximately in the range from 5 to 10 cm.
  • the plate widths can be between 5 cm and 40 cm or even larger.
  • the slabs should preferably be laid horizontally or in line with the street level, more rarely vertically.
  • the panels can either be attached to individual supports, but it is better if the panels are attached to solid concrete walls, which are created for the purpose of sound transmission.
  • the sound absorption panels can also be very thick-walled, e.g. 20 to 40 cm thick.
  • Vertical grooves or vertical cavities are arranged in the area of the back of the plates, which, in the course of the assembly - for grooves, formwork to the outside is required - are poured with heavy concrete. Sticks of the foundations protrude into these grooves or hollow channels in order to make the connection with the mostly required reinforced grouting concrete.
  • Horizontal or obliquely arranged connecting grooves or grooves can also be arranged between the vertical grooves or hollow channels.
  • the cross-sections of the vertical grooves or channels should not be less than 15x15cm according to the reinforced concrete standard.
  • the distances between them can be specified by the structural engineer depending on the height and wind load, e.g. Im up to 2m and more.
  • the grouting concrete can ensure that the airborne sound passage of the systems exceeds the requirements for soundproof walls.
  • 52 dB could already be achieved with a 30cm thick EPS lightweight concrete wall with about 80 liters of filling concrete per ⁇ r as sound insulation R.
  • 10 to 36 dB are prescribed at frequencies between 100 to 6000 Hz.
  • the procedure according to the invention is such that the material properties such as toughness, frost resistance, weather resistance of the EPS lightweight concrete make it possible to proceed as follows:
  • a large number of bores or holes made by means of a mandrel are arranged in the EPS plate surface in a side facing the noise source. This Bores or holes should preferably be 6 to 10 cm deep, often less deep or deeper.
  • the holes should preferably be about 1/4 to 1/3 or more of the surface. That is, the sum of the cross sections of the holes or the bores per unit area of the sound absorption surfaces should preferably be in the above range.
  • the hole diameter is preferably about 4mm to 8mm. Depending on the requirement profile, larger hole diameters would often also be required.
  • spikes such as nails with diameters of 5 to 8 mm
  • the EPS lightweight concrete can also be pressed into and pulled out of the EPS lightweight concrete without the material webs bursting between the individual holes, in particular if, for example, Hole boards are placed on the plate to be punched, through which nail batteries are then connected, pressed and pressed into the lightweight EPS concrete and pulled out again.
  • the perforated boards are held in place in the meantime to prevent EPS residues from being pulled out with the nails or parts of the webs of the EPS material. It is advantageous if the procedure is followed in that the nails are pressed into the EPS plate from below, so that subsequent crumbs of material fall out when they are pulled out and no longer have to be suctioned off.
  • the nails are preferably moistened before use.
  • a feature of the invention also consists in the fact that the undrilled holes 124 can also be designed so that they are curved, since nails 123 can also be pressed into the EPS lightweight concrete slabs 125 in a semicircular manner (FIG. 11).
  • the surfaces of the sound absorption surfaces are preferably coated or sprayed with weather-resistant, as thin a paint as possible, so that the rough surface finish is retained.
  • the sound absorption s in the frequency range from 100 to 1000 Hz is likely to be over 10% to 90% and in the further frequency ranges over 1000 Hz thus remains approximately over 90%.

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Abstract

Elément de paroi pour parois extérieures ou plafonds, constitué de béton lourd contenant éventuellement des additifs tels que béton ponce, argile expansée ou substance similaire, et de béton léger. L'élément comporte au moins deux couches. La couche interne (e, 3) est constituée de béton lourd contenant éventuellement du béton ponce, de l'argile expansée, du polystyrène expansé ou une substance similaire, ou de béton d'argile expansée contenant éventuellement du polystyrène expansé ou une substance similaire, et la couche externe (d, 1) est constituée de béton léger.
PCT/AT1997/000005 1996-01-16 1997-01-16 Element de paroi WO1997026423A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU13595/97A AU1359597A (en) 1996-01-16 1997-01-16 Wall element

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
ATA68/96 1996-01-16
AT6896 1996-01-16
ATA1492/96 1996-08-20
AT149296 1996-08-20

Publications (1)

Publication Number Publication Date
WO1997026423A1 true WO1997026423A1 (fr) 1997-07-24

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ID=25591322

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Application Number Title Priority Date Filing Date
PCT/AT1997/000005 WO1997026423A1 (fr) 1996-01-16 1997-01-16 Element de paroi

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AU (1) AU1359597A (fr)
WO (1) WO1997026423A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0825302A1 (fr) * 1996-08-20 1998-02-25 Alpha Brevet S.A. Dispositif d'absorption du son, notamment le long des routes
DE19930366B4 (de) * 1999-06-15 2009-07-02 Xella Trockenbau - Systeme Gmbh Verbundplatte
WO2021047875A1 (fr) * 2019-09-13 2021-03-18 METTEN Consulting GmbH Élément en béton et procédé de production associé

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1295934A (fr) * 1960-03-11 1962-06-15 Procédé pour la fabrication de cloisons et plafonds préfabriqués
FR1452197A (fr) * 1965-07-27 1966-02-25 Stup Procedes Freyssinet éléments d'élégissement pour constructions en béton
FR2267430A1 (fr) * 1974-04-09 1975-11-07 Goidinger J
DE2600026A1 (de) * 1976-01-02 1977-07-14 Novopan Ag Platte und verfahren zur herstellung dieser platte

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1295934A (fr) * 1960-03-11 1962-06-15 Procédé pour la fabrication de cloisons et plafonds préfabriqués
FR1452197A (fr) * 1965-07-27 1966-02-25 Stup Procedes Freyssinet éléments d'élégissement pour constructions en béton
FR2267430A1 (fr) * 1974-04-09 1975-11-07 Goidinger J
DE2600026A1 (de) * 1976-01-02 1977-07-14 Novopan Ag Platte und verfahren zur herstellung dieser platte

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0825302A1 (fr) * 1996-08-20 1998-02-25 Alpha Brevet S.A. Dispositif d'absorption du son, notamment le long des routes
DE19930366B4 (de) * 1999-06-15 2009-07-02 Xella Trockenbau - Systeme Gmbh Verbundplatte
WO2021047875A1 (fr) * 2019-09-13 2021-03-18 METTEN Consulting GmbH Élément en béton et procédé de production associé
EP4321317A3 (fr) * 2019-09-13 2024-05-08 METTEN Technologies GmbH & Co. KG Elément en béton et son procédé de fabrication

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Publication number Publication date
AU1359597A (en) 1997-08-11

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